Metal Embedded Porous Carbon for Efficient CO2 Cycloaddition under Mild Conditions

Catalysts

Serge Zhuiykov¹  Francis Verpoort²  Chen Qi²  Somboon Chaemchuen²  Meng Liu²  Jichao Wang² 

[1] Centre for Environmental & Energy Research, Faculty of Bioscience Engineering, Ghent University Global Campus, 119 Songdomunhwa-Ro, Incheon 21985, Korea;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;

关键词: N-doped carbon;    ZIFs;    catalysis;    pyrolysis;    CO₂ utilization;   

DOI  :  10.3390/catal12040427

来源: DOAJ

【 摘 要 】

Nitrogen-doped porous carbon material was generated via thermal pyrolysis of zeolitic imidazole frameworks (ZIFs). The structure of the ZIF templates was tuned, so that the obtained product was an N-doped porous carbon-containing encapsulated metal nanoparticle. The hierarchical structural and unique properties of pyrolyzed materials are involved in further application, including catalysis. The as-synthesized porous carbon materials were applied as a catalyst for CO₂ fixation on cyclic carbonates under near ambient pressure without solvent and co-catalyst. The zinc dispersion in highly porous carbon material, deriving from ZIF-8, exhibited a superior catalytic performance among the synthesized materials. The acid sites (Zn species) and the incorporated basic sites (N-species) present in the porous carbon material are essential for a high affinity for gas adsorption and CO₂ conversion. Additionally, the catalyst was found to be very robust and stable during recycling studies as the catalytic performance remained high for seven cycles.

【 授权许可】

Unknown